public function add(EntityManagerInterface $em, User $user): JsonResponse
    {
        try {
            $follow = new Follow();
            $follower = $this->getUser();
            $follow->setFollower($follower);
            $follow->setFollowing($user);
            $follow->setCreatedAt(new \DateTimeImmutable());
            $em->persist($follow);
            $em->flush();
            return new JsonResponse(['status' => 'success', 'message' => 'Followed successfully'], 200);
        } catch (\Exception $e) {
            return new JsonResponse(['status' => 'error', 'message' => $e->getMessage()], 500);
        }
    }

<?php

namespace App\Entity;

use App\Repository\FollowRepository;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;


#[UniqueEntity(fields: ['follower', 'following'], message: 'You are already following this user')]
#[ORM\Entity(repositoryClass: FollowRepository::class)]
class Follow
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column]
    private ?int $id = null;

    #[ORM\ManyToOne]
    #[ORM\JoinColumn(nullable: false)]
    private ?User $follower = null;

    #[ORM\Column]
    private ?\DateTimeImmutable $createdAt = null;

    #[ORM\ManyToOne]
    #[ORM\JoinColumn(nullable: false)]
    private ?User $following = null;
    public function getId(): ?int
    {
        return $this->id;
    }

    public function getFollower(): ?User
    {
        return $this->follower;
    }

    public function setFollower(?User $follower): static
    {
        $this->follower = $follower;

        return $this;
    }

    public function getCreatedAt(): ?\DateTimeImmutable
    {
        return $this->createdAt;
    }

    public function setCreatedAt(\DateTimeImmutable $createdAt): static
    {
        $this->createdAt = $createdAt;

        return $this;
    }

    public function getFollowing(): ?User
    {
        return $this->following;
    }

    public function setFollowing(?User $following): static
    {
        $this->following = $following;

        return $this;
    }
}